LST 2100RFT-AS Specification Sheet Download Page 1

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2100RFT-AS_DBL_LST_EN_0804.PDF • PAGE 1

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Building Safety. Building Security.

Description

Specifi cations

•   Combination of optical and thermal 

characteristics of fi re

•  Alarm temperature 58°C
•  High range of radio transmission
•   2 frequency bands with

24 bidirectional data channels

•   Communication with RF Interfaces 

M500RFE-AS and M400RFE-AS

•  Base included

The Optical-Thermal Radio Detector 2100RFT-AS uses 

both an optical sensing chamber based on the scattered 

light principle as well as a separate thermal max detec-

tion unit with an alarm temperature of 58°C. The detec-

tor communicates with the RF Interfaces M500RFE-AS 

or M400RFE-AS via a secured radio protocol. The ac-

tivated condition of the detector is optically indicated 

by an LED. The radio detector is especially suitable for 

areas, where cabling is impossible or uneconomical.

4 data channels in the frequency band 868MHz as well 

as 20 channels in the frequency band 434MHz are avai-

lable for the bidirectional data transmission. The avai-

lability of the channel is checked regularly. During the 

learning phase of the detector, i.e., when the detector 

is registered at the radio interface, a unique key, based 

on a choice of several million codes, is created, which 

allows the unambiguous identifi cation of the detector. 

Regular status messages, monitoring of the battery vol-

tage and the long life of the batteries ensure the high 

reliability of the system.

The  detector  is  designed  for  indoor  mounting  and  is 

delivered with a mounting base, however, batteries are 

not included.

Operating voltage 

2 lithium batteries 3V, type CR123, battery life approx. 1.5 years

Alarm temperature 

58°C

Range of radio transmission (free air) 

300m

Frequency band 

868MHz or 434MHz

Ambient temperature 

0°C to +40°C

Dimensions ø × H 

140 × 55 (mm)

Colour 

white

Weight (without batteries) 

187g

Approval 

VdS G204105

Order number 

241036

Order name 

Optical-Thermal Detector/RF/complete 2100RFT-AS

Lithium battery 3V

Order number 

249215

Order name 

Battery for 2100RFT-AS CR123

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